By default ATG uses the smallest hex size for its screenshot utility. If you wish to have larger map screenshots for planning purposes, these modified generic.at2 files will do the job. When you are setting up your random game, simply select the at2 file you wish to use. No other changes have been made other than screenshot size. Do note that the larger the screenshot size, the larger the file size. Huge maps using large hex zoom mode will produce some very large screenshot files! I don't believe it is necessary for other players in multiplayer games to have this mod as the change is saved into the save game file and thus all players get the same screenshot mode (if they have screenshots turned on).

Note: I suggest you right click on the link and, depending on your browser, choose "Save Link As" or "Save Target As."